Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
History

Thu, 13 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-15
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 10 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 07 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp consul
Hashicorp consul Enterprise
Vendors & Products Hashicorp
Hashicorp consul
Hashicorp consul Enterprise

Fri, 07 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Description Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Title Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: HashiCorp

Published: 2026-08-07T19:18:59.119Z

Updated: 2026-08-10T18:24:44.737Z

Reserved: 2026-08-05T20:21:09.285Z

Link: CVE-2026-19012

cve-icon Vulnrichment

Updated: 2026-08-10T17:45:26.188Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-07T20:16:50.143

Modified: 2026-08-28T15:47:00.217

Link: CVE-2026-19012

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-07T19:18:59Z

Links: CVE-2026-19012 - Bugzilla